Answer:
square root(-1) = i
Step-by-step explanation:
Answer:
4900 Litres
Step-by-step explanation:
First we need a common demoninator:
3/7=15/35
Then we subtract the two to figure out how much 420 Litres is:
15/35-12/35=3/35
3/35=420 litres
Divide amount by the numerater for thow much 1/x is.
1/35=140
and multiply by the denomenator to get a full number on your fraction, and therefore a full tank.
140 x 35 = 4900
Answer: B
Step-by-step explanation: if you divide 27/30 by 3 you get 9/10
Answer:
x - 6
—————
x + 5
Step-by-step explanation:
Let

be the identity matrix. Then pick whatever matrix you like for

.